Non-slip luminescent device for surfaces such as stair treads
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 14, 1992
Grant Date -
N/A
app pub date -
Feb 22, 1991
filing date -
Feb 22, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved stair nosing device especially useful in temporarily darkened stairways is provided which includes a plate member with an upper surface, at least a portion of which is covered by luminescent material. The stair nosing device includes non-slip material attached to the upper surface to provide increased frictional contact with foot traffic relative to the plate member. The non-slip material is attached as spaced apart strips with an upper surface of the non-slip material being higher relative to the plate member. In this way the luminescent material is protected from damage by foot traffic.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully